ViewDataTable ID 'table' is already in use!

@dolfint wrote:

Hello,

I downloaded version 2.16.0 installed and everything seemed alright, then I updated it to version 2.16.1, through the UI. I guess the connection timed out and I got a 500 server error. Then I re-uploaded the files for version 2.16.0 and I started to get a “ViewDataTable ID 'table' is already in use!” error.

I googled the issue but it seems that there have been only two cases with a similar error:

• Errror in Piwik: ViewDataTable ID ‘tableGoals’ is already in use!
• Some Analytics do not load

In both threads, it seems the problem with this kind of message gets fixed if you reupload the files manually.

Since this is a fresh installation, I dropped all the tables in the DB, deleted all the files in the server, and started from scratch. After installing version 2.16.0, and, this time, downloading the RC, I uploaded and updated the software. No errors… cool.

Then I noticed that Piwik is not tracking. As one of the things this page suggests:

http: //piwik.org/faq/troubleshooting/faq_58/

I checked the “piwik_log_visit” table… it has no rows, then, I enabled the “DBStats” plugin, and when I check the Database usage I get the same message:

ViewDataTable ID 'table' is already in use!

This is a fresh install, I uploaded the files manually, the FTP transfer was set to binary… How can I solve this? Is there something else I need to do? should I just re-upload version 2.16.0? I can definitely try that, but if I get the same error, how can it be fixed?

When I do a System Check, everything has a green check mark next to it.

Thank you.

UDPATE

After a while it seems I'm starting to get some data; however, the 'table' is already in use still persists. Here are some screen shots that will hopefully help?

I get the same messge for:

• Length of Visits
• Referrer Websites
• Visits by Server Time
• Visitor Browser
• Search Engines

UPDATE 2
It seems the problem has to do with /piwik/plugins/CoreVisualizations/Visualizations/HtmlTable/PivotBy.php (piwik-2.16.1-rc1 doesn't have it anymore). I'm assuming is no longer needed, so I deleted it; The error is now gone, and data is being displayed in those modules where it appeared.

The getAvailableViewDataTables function of Manager class sets the table index of the results array:

["table"]=> string(65) "Piwik\Plugins\CoreVisualizations\Visualizations\HtmlTable\PivotBy"

But it seems that the pivotBy index gets never unset (source: /piwik/plugins/CoreVisualizations/Visualizations/HtmlTable/AllColumns.php):

$this->requestConfig->request_parameters_to_modify['pivotBy'] = null; // always unset pivotBy

Could this be a bug?

My approach seems to have fixed my issue. So I'm posting it here in case it helps someone else; if, however, this is not the right approach, maybe Matthieu (or someone more familiar with the software than me) will hopefully read this and let me know.

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